/**
* bbCode control by subBlue design [ www.subBlue.com ]
* Includes unixsafe colour palette selector by SHS`
*/

// Startup variables
var imageTag = false;
var theSelection = false;

// Check for Browser & Platform for PC & IE specific bits
// More details from: http://www.mozilla.org/docs/web-developer/sniffer/browser_type.html
var clientPC = navigator.userAgent.toLowerCase(); // Get client info
var clientVer = parseInt(navigator.appVersion); // Get browser version

var is_ie = ((clientPC.indexOf('msie') != -1) && (clientPC.indexOf('opera') == -1));
var is_nav = ((clientPC.indexOf('mozilla') != -1) && (clientPC.indexOf('spoofer') == -1) && (clientPC.indexOf('compatible') == -1) && (clientPC.indexOf('opera') == -1) && (clientPC.indexOf('webtv') == -1) && (clientPC.indexOf('hotjava') == -1));

var is_win = ((clientPC.indexOf('win') != -1) || (clientPC.indexOf('16bit') != -1));
var is_mac = (clientPC.indexOf('mac') != -1);

/**
* Shows the help messages in the helpline window
*/
function helpline(help)
{
	document.forms[form_name].helpbox.value = eval(help + '_help');
}

/**
* Replacement for arrayname.length property
*/
function getarraysize(thearray)
{
	for (i = 0; i < thearray.length; i++)
	{
		if (thearray[i] == 'undefined' || thearray[i] == '' || thearray[i] == null)
		{
			return i;
		}
	}

	return thearray.length;
}

/**
* Replacement for arrayname.push(value) not implemented in IE until version 5.5
* Appends element to the array
*/
function arraypush(thearray,value)
{
	thearray[getarraysize(thearray)] = value;
}

/**
* Replacement for arrayname.pop() not implemented in IE until version 5.5
* Removes and returns the last element of an array
*/
function arraypop(thearray)
{
	thearraysize = getarraysize(thearray);
	retval = thearray[thearraysize - 1];
	delete thearray[thearraysize - 1];

	return retval;
}

/**
* Insert emoticon
*/
function smiley(text) 
{
	text = ' ' + text + ' ';

	if (document.forms[form_name].elements[text_name].createTextRange && document.forms[form_name].elements[text_name].caretPos)
	{
		var caretPos = document.forms[form_name].elements[text_name].caretPos;

		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? caretPos.text + text + ' ' : caretPos.text + text;
		document.forms[form_name].elements[text_name].focus();
	}
	else
	{
		var selStart = document.forms[form_name].elements[text_name].selectionStart;
		var selEnd = document.forms[form_name].elements[text_name].selectionEnd;

		mozWrap(document.forms[form_name].elements[text_name], text, '')
		document.forms[form_name].elements[text_name].focus();
		document.forms[form_name].elements[text_name].selectionStart = selStart + text.length;
		document.forms[form_name].elements[text_name].selectionEnd = selEnd + text.length;
	}
}

/**
* Apply bbcodes
*/
function bbfontstyle(bbopen, bbclose)
{
	theSelection = false;
	document.forms[form_name].elements[text_name].focus();

	if ((clientVer >= 4) && is_ie && is_win)
	{
		// Get text selection
		theSelection = document.selection.createRange().text;

		if (theSelection)
		{
			// Add tags around selection
			document.selection.createRange().text = bbopen + theSelection + bbclose;
			document.forms[form_name].elements[text_name].focus();
			theSelection = '';
			return;
		}
	}
	else if (document.forms[form_name].elements[text_name].selectionEnd && (document.forms[form_name].elements[text_name].selectionEnd - document.forms[form_name].elements[text_name].selectionStart > 0))
	{
		mozWrap(document.forms[form_name].elements[text_name], bbopen, bbclose);
		document.forms[form_name].elements[text_name].focus();
		theSelection = '';
		return;
	}

	// Close image tag before adding
	if (imageTag)
	{
		insert_text(bbtags[15]);

		// Remove the close image tag from the list
		lastValue = arraypop(bbcode) - 1;

		// Return button back to normal state
		document.forms[form_name].addbbcode14.value = 'Img';
		imageTag = false;
	}

	// Open tag
	insert_text(bbopen + bbclose);

	document.forms[form_name].elements[text_name].focus();

	storeCaret(document.forms[form_name].elements[text_name]);
	return;
}

/**
* Insert text at position
*/
function insert_text(text)
{
	if (document.forms[form_name].elements[text_name].createTextRange && document.forms[form_name].elements[text_name].caretPos)
	{
		var caretPos = document.forms[form_name].elements[text_name].caretPos;
		caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? caretPos.text + text + ' ' : caretPos.text + text;
	}
	else if (document.forms[form_name].elements[text_name].selectionStart)
	{
		var selStart = document.forms[form_name].elements[text_name].selectionStart;
		var selEnd = document.forms[form_name].elements[text_name].selectionEnd;

		mozWrap(document.forms[form_name].elements[text_name], text, '')
		document.forms[form_name].elements[text_name].selectionStart = selStart + text.length;
		document.forms[form_name].elements[text_name].selectionEnd = selEnd + text.length;
	}
	else
	{
		document.forms[form_name].elements[text_name].value = document.forms[form_name].elements[text_name].value + text;
	}
}

/**
* Add inline attachment at position
*/
function attach_inline()
{
	insert_text('[attachment=' + document.forms[form_name].elements['attachments'].value + ']' + document.forms[form_name].elements['attachments'].options[document.forms[form_name].elements['attachments'].selectedIndex].text + '[/attachment]');
	document.forms[form_name].elements[text_name].focus();
}

/**
* Add quote text to message
*/
function addquote(post_id, username)
{
	var message_name = 'message_' + post_id;
	var theSelection = '';
	var divarea = false;

	if (document.all)
	{
		eval('divarea = document.all.' + message_name + ';');
	}
	else
	{
		eval("divarea = document.getElementById('" + message_name + "');");
	}

	// Get text selection - not only the post content :(
	if (window.getSelection)
	{
		theSelection = window.getSelection().toString();
	}
	else if (document.getSelection)
	{
		theSelection = document.getSelection();
	}
	else if (document.selection)
	{
		theSelection = document.selection.createRange().text;
	}

	if (theSelection == '')
	{
		if (document.all)
		{
			theSelection = divarea.innerText;
		}
		else if (divarea.textContent)
		{
			theSelection = divarea.textContent;
		}
		else if (divarea.firstChild.nodeValue)
		{
			theSelection = divarea.firstChild.nodeValue;
		}
	}

	if (theSelection)
	{
		insert_text('[quote="' + username + '"]' + theSelection + '[/quote]');
	}

	return;
}

/**
* bbstyle
*/
function bbstyle(bbnumber)
{
	donotinsert = false;
	theSelection = false;
	bblast = 0;
	document.forms[form_name].elements[text_name].focus();

	// Close all open tags & default button names
	if (bbnumber == -1)
	{
		while (bbcode[0])
		{
			butnumber = arraypop(bbcode) - 1;
			document.forms[form_name].elements[text_name].value += bbtags[butnumber + 1];
			buttext = eval('document.forms[form_name].addbbcode' + butnumber + '.value');
		
			if (buttext != '[*]')
			{
				eval('document.forms[form_name].addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
			}
		}

		document.forms[form_name].addbbcode10.value = 'List';
		bbtags[10] = '[list]';

		document.forms[form_name].addbbcode12.value = 'List=';
		bbtags[12] = '[list=]';
		
		// All tags are closed including image tags :D
		imageTag = false;
		document.forms[form_name].elements[text_name].focus();

		return;
	}

	// [*] doesn't have an end tag
	noEndTag = (bbtags[bbnumber] == '[*]')

	if ((clientVer >= 4) && is_ie && is_win)
	{
		// Get text selection
		theSelection = document.selection.createRange().text;

		if (theSelection) 
		{
			// Add tags around selection
			document.selection.createRange().text = bbtags[bbnumber] + theSelection + ((!noEndTag) ? bbtags[bbnumber+1] : '');
			document.forms[form_name].elements[text_name].focus();
			theSelection = '';
			return;
		}
	}
	else if (document.forms[form_name].elements[text_name].selectionEnd && (document.forms[form_name].elements[text_name].selectionEnd - document.forms[form_name].elements[text_name].selectionStart > 0))
	{
		mozWrap(document.forms[form_name].elements[text_name], bbtags[bbnumber], ((!noEndTag) ? bbtags[bbnumber+1] : ''));
		document.forms[form_name].elements[text_name].focus();
		theSelection = '';
		return;
	}

	// Find last occurance of an open tag the same as the one just clicked
	for (i = 0; i < bbcode.length; i++)
	{
		if (bbcode[i] == bbnumber+1)
		{
			bblast = i;
			donotinsert = true;
		}
	}

	if (bbnumber == 10 && bbtags[10] != '[*]')
	{
		if (donotinsert)
		{
			document.forms[form_name].addbbcode12.value = 'List=';
			tmp_help = o_help;
			o_help = e_help;
			e_help = tmp_help;
			bbtags[12] = '[list=]';
		}
		else
		{
			document.forms[form_name].addbbcode12.value = '[*]';
			tmp_help = o_help;
			o_help = e_help;
			e_help = tmp_help;
			bbtags[12] = '[*]';
		}
	}

	if (bbnumber == 12 && bbtags[12] != '[*]')
	{
		if (donotinsert)
		{
			document.forms[form_name].addbbcode10.value = 'List';
			tmp_help = l_help;
			l_help = e_help;
			e_help = tmp_help;
			bbtags[10] = '[list]';
		}
		else
		{
			document.forms[form_name].addbbcode10.value = '[*]';
			tmp_help = l_help;
			l_help = e_help;
			e_help = tmp_help;
			bbtags[10] = '[*]';
		}
	}

	// Close all open tags up to the one just clicked & default button names
	if (donotinsert)
	{
		while (bbcode[bblast])
		{
			butnumber = arraypop(bbcode) - 1;

			if (bbtags[butnumber] != '[*]')
			{
				insert_text(bbtags[butnumber + 1]);
			}
			else
			{
				insert_text(bbtags[butnumber]);
			}

			buttext = eval('document.forms[form_name].addbbcode' + butnumber + '.value');

			if (bbtags[butnumber] != '[*]')
			{
				eval('document.forms[form_name].addbbcode' + butnumber + '.value ="' + buttext.substr(0,(buttext.length - 1)) + '"');
			}
			imageTag = false;
		}
		document.forms[form_name].elements[text_name].focus();
		return;
	}
	else
	{
		// Open tags

		// Close image tag before adding another
		if (imageTag && (bbnumber != 14))
		{
			insert_text(bbtags[15]);

			// Remove the close image tag from the list
			lastValue = arraypop(bbcode) - 1;

			// Return button back to normal state
			document.forms[form_name].addbbcode14.value = 'Img';
			imageTag = false;
		}

		// Open tag
		insert_text(bbtags[bbnumber]);

		// Check to stop additional tags after an unclosed image tag
		if (bbnumber == 14 && imageTag == false)
		{
			imageTag = 1; 
		}

		if (bbtags[bbnumber] != '[*]')
		{
			arraypush(bbcode, bbnumber + 1);
			eval('document.forms[form_name].addbbcode'+bbnumber+'.value += "*"');
		}

		document.forms[form_name].elements[text_name].focus();
		return;
	}

	storeCaret(document.forms[form_name].elements[text_name]);
}

/**
* From http://www.massless.org/mozedit/
*/
function mozWrap(txtarea, open, close)
{
	var selLength = txtarea.textLength;
	var selStart = txtarea.selectionStart;
	var selEnd = txtarea.selectionEnd;
	var scrollTop = txtarea.scrollTop;

	if (selEnd == 1 || selEnd == 2) 
	{
		selEnd = selLength;
	}

	var s1 = (txtarea.value).substring(0,selStart);
	var s2 = (txtarea.value).substring(selStart, selEnd)
	var s3 = (txtarea.value).substring(selEnd, selLength);

	txtarea.value = s1 + open + s2 + close + s3;
	txtarea.selectionStart = selEnd + open.length + close.length;
	txtarea.selectionEnd = txtarea.selectionStart;
	txtarea.focus();
	txtarea.scrollTop = scrollTop;

	return;
}

/**
* Insert at Claret position. Code from
* http://www.faqts.com/knowledge_base/view.phtml/aid/1052/fid/130
*/
function storeCaret(textEl)
{
	if (textEl.createTextRange)
	{
		textEl.caretPos = document.selection.createRange().duplicate();
	}
}

/**
* Color pallette
*/
function colorPalette(dir, width, height)
{
	var r = 0, g = 0, b = 0;
	var numberList = new Array(6);

	numberList[0] = '00';
	numberList[1] = '40';
	numberList[2] = '80';
	numberList[3] = 'BF';
	numberList[4] = 'FF';

	document.write('<table cellspacing="1" cellpadding="0" border="0" class="type2">');

	for (r = 0; r < 5; r++)
	{
		if (dir == 'h')
		{
			document.writeln('<tr>');
		}

		for (g = 0; g < 5; g++)
		{
			if (dir == 'v')
			{
				document.writeln('<tr>');
			}
			
			for (b = 0; b < 5; b++)
			{
				color = String(numberList[r]) + String(numberList[g]) + String(numberList[b]);
				document.write('<td style="line-height: ' + height + 'px; background-color:#' + color + '; width: ' + width + 'px; height: ' + height + 'px;">');
				document.write('<a href="javascript:bbfontstyle(\'[color=#' + color + ']\', \'[/color]\');" onmouseover="helpline(\'s\');"><img src="images/spacer.gif" width="' + width + '" height="' + height + '" alt="#' + color + '" title="#' + color + '" /></a>');
				document.writeln('</td>');
			}

			if (dir == 'v')
			{
				document.writeln('</tr>');
			}
		}

		if (dir == 'h')
		{
			document.writeln('</tr>');
		}
	}
	document.writeln('</table>');
}
